The Tor Browser / file revision

 /* This Source Code Form is subject to the terms of the Mozilla Public

  * License, v. 2.0. If a copy of the MPL was not distributed with this

  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

 // This file tests Bug 384744 - or specifically that createInstance won't cause

 // a failure with the download manager.  The old practice was bad because if

 // someone called createInstance before anyone called getService, getService

 // would fail, and we would have a non-functional download manager.

 function run_test()

 {

   var dmci = Cc["@mozilla.org/download-manager;1"].

              createInstance(Ci.nsIDownloadManager);

   var dmgs = Cc["@mozilla.org/download-manager;1"].

              getService(Ci.nsIDownloadManager);

   do_check_eq(dmci, dmgs);

 }